Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6055953 | Gas engine having roller-shaped rotary slide valve | Hans Weickel, Karl Stellwagen | 2000-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6055953 | Gas engine having roller-shaped rotary slide valve | Hans Weickel, Karl Stellwagen | 2000-05-02 |